From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 .../gnu/javax/crypto/mac/HMacFactory.java          | 111 +++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 libjava/classpath/gnu/javax/crypto/mac/HMacFactory.java

(limited to 'libjava/classpath/gnu/javax/crypto/mac/HMacFactory.java')

diff --git a/libjava/classpath/gnu/javax/crypto/mac/HMacFactory.java b/libjava/classpath/gnu/javax/crypto/mac/HMacFactory.java
new file mode 100644
index 000000000..0afd8c6ac
--- /dev/null
+++ b/libjava/classpath/gnu/javax/crypto/mac/HMacFactory.java
@@ -0,0 +1,111 @@
+/* HMacFactory.java --
+   Copyright (C) 2001, 2002, 2006 Free Software Foundation, Inc.
+
+This file is a part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at
+your option) any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
+USA
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version.  */
+
+
+package gnu.javax.crypto.mac;
+
+import gnu.java.security.Registry;
+import gnu.java.security.hash.HashFactory;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+/**
+ * A <i>Factory</i> to instantiate Keyed-Hash Message Authentication Code
+ * (HMAC) algorithm instances.
+ */
+public class HMacFactory
+    implements Registry
+{
+  /** Trivial constructor to enforce <i>Singleton</i> pattern. */
+  private HMacFactory()
+  {
+    super();
+  }
+
+  /**
+   * Return an instance of a <i>HMAC</i> algorithm given the name of its
+   * underlying hash function, prefixed with the literal defined in
+   * {@link Registry#HMAC_NAME_PREFIX}.
+   *
+   * @param name the fully qualified name of the underlying algorithm: composed
+   *          as the concatenation of a literal prefix (see
+   *          {@link Registry#HMAC_NAME_PREFIX}) and the name of the underlying
+   *          hash algorithm.
+   * @return an instance of the <i>HMAC</i> algorithm, or <code>null</code>
+   *         if none can be constructed.
+   * @exception InternalError if the implementation does not pass its self-test.
+   */
+  public static IMac getInstance(String name)
+  {
+    if (name == null)
+      return null;
+
+    name = name.trim();
+    name = name.toLowerCase();
+    if (! name.startsWith(HMAC_NAME_PREFIX))
+      return null;
+
+    // strip the prefix
+    name = name.substring(HMAC_NAME_PREFIX.length()).trim();
+    IMac result = new HMac(HashFactory.getInstance(name));
+    if (result != null && ! result.selfTest())
+      throw new InternalError(result.name());
+
+    return result;
+  }
+
+  /**
+   * <p>
+   * Returns a {@link java.util.Set} of names of <i>HMAC</i> algorithms
+   * supported by this <i>Factory</i>.
+   * </p>
+   *
+   * @return a {@link java.util.Set} of HMAC algorithm names (Strings).
+   */
+  public static final Set getNames()
+  {
+    Set hashNames = HashFactory.getNames();
+    HashSet hs = new HashSet();
+    for (Iterator it = hashNames.iterator(); it.hasNext();)
+      hs.add(HMAC_NAME_PREFIX + ((String) it.next()));
+
+    return Collections.unmodifiableSet(hs);
+  }
+}
-- 
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